Copper Nickel Fittings

Farmer’s Copper Ltd. maintains a broad inventory of Copper Nickel C70600 (90/10) and C71500 (70/30) fittings. These copper nickel alloys prove to have very good resistance to seawater, brine water, organic compounds, neutral and alkaline salts, diluted non-oxidizing acids, and more. The copper nickel alloys are most commonly used in seawater environments because of the anti-fouling. Copper nickel creates a thin tenacious protective film formation, which eliminates any marine life to adhere to the pipe walls. Observations in velocity tests over a number of years indicates that the surface profile of copper nickel tended to become smoother rather than rougher at velocities where metal loss reached measurable amounts.

Typical Applications

  • Condensers
  • Seawater piping
  • Power plants
  • Exchanger shells

Farmer’s Copper Ltd. can provide you with your copper nickel pipe, fittings, flange requirements, and assist you with additional technical data of joining copper nickel piping systems. Along with our pipe, fittings, and flanges; we also inventory sheet, plate, and round rod for fabrication. Please contact one of our experts today to find out how we can help meet your copper nickel needs.

List of standard sizes for C70600

Class 200, SCH 40, SCH 80, Butt-weld Fittings
Threaded and Socket-weld Fittings, 3000#/6000#
C96200 400# Socket-weld Fittings

List of standard sizes for C71500

SCH 80 Butt-weld Fittings
Threaded and Socket-weld Fittings, 3000#/6000#
C96400 400# Socket-weld Fittings

C70600

Fabrication Properties

Joining Technique

Suitability

Soldering

Excellent

Brazing

Excellent

Oxyacetylene Welding

Fair

Gas Shielded Arc Welding

Excellent

Coated Metal Arc Welding

Good

Spot Weld

Good

Seam Weld

Good

Butt Weld

Excellent

Capacity for Being Cold Worked

Good

Capacity for Being Hot Formed

Good

Machinability Rating

20

Chemical Composition
(%max., unless shown as range or min.)

 

Cu(1)

Fe

Pb

Mn

Ni(2)

Zn

Min./Max.

Rem.

1.0-1.8

.05

1.0

9.0-11.0

1.0

Nominal

88.6

1.4

-

-

10.0

-

C71500

Fabrication Properties

Joining Technique

Suitability

Soldering

Excellent

Brazing

Excellent

Oxyacetylene Welding

Good

Gas Shielded Arc Welding

Excellent

Coated Metal Arc Welding

Excellent

Spot Weld

Excellent

Seam Weld

Excellent

Butt Weld

Excellent

Capacity for Being Cold Worked

Good

Capacity for Being Hot Formed

Good

Machinability Rating

20

Chemical Composition
(%max., unless shown as range or min.)

 

Cu(1)

Fe

Pb

Mn

Ni(2)

Zn

Min./Max.

Rem.

.40-1.0

.05

1.0

29.0-33.0

1.0

Nominal

69.5

.50

-

-

30.0

-

Contact one of our sales representatives today
to inquire about a quote from Farmers Copper
or call us today at (800) 231-9450



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